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| Number | Date | Country |
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| 2116671 | Mar 1883 | CAX |
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| 1211740 | Sep 1986 | CAX |
| 1230865 | Dec 1987 | CAX |
| 2011272 | Mar 1990 | CAX |
| 1269351 | May 1990 | CAX |
| 1288395 | Sep 1991 | CAX |
| 2014209 | Oct 1991 | CAX |
| 1301712 | May 1992 | CAX |
| 2039382 | Sep 1992 | CAX |
| 1311222 | Dec 1992 | CAX |
| 2067970 | Aug 1993 | CAX |
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| 1325923 | Aug 1973 | GBX |